lst = [1,2,3]
del lst[0]
print(lst)

str = 'hello'
# h是否在str中
result = 'h' in str
print(result)
result = 'h' not in str
print(result)

# 字符串
str1 = 'hello'
str2 = 'world'
str = str1 + str2

lst1 = [1,2,3]
lst2 = [4,5,6]
lst = lst1 + lst2

t1 = (1,2,3)
t2 = (4,5,6)
t = t1 + t2

str = 'hello'
print(str*3)

l = [1,2,3]
print(l * 3)

t = (1,2,3)
print(t * 3)